期刊
COMMUNICATIONS BIOLOGY
卷 5, 期 1, 页码 -出版社
NATURE PORTFOLIO
DOI: 10.1038/s42003-022-03323-x
关键词
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资金
- UK Medical Research Council (MRC)
- Biotechnology and Biological Sciences Research Council
- British Heart Foundation (BHF) through MRC grant [MR/M012816/1]
- Lifestyle Theme of the Leicester NHR Leicester Biomedical Research Centre
- NIHR Applied Research Collaborations East Midlands (ARC-EM)
- British Heart Foundation
The study suggests that walking pace is associated with leucocyte telomere length (LTL), with faster walking pace being causally linked to longer LTL. This finding may help explain the beneficial effects of brisk walking on health status. The study also highlights the potential of self-reported walking pace as a pragmatic target for interventions.
Walking pace is a simple and functional form of movement and a strong predictor of health status, but the nature of its association with leucocyte telomere length (LTL) is unclear. Here we investigate whether walking pace is associated with LTL, which is causally associated with several chronic diseases and has been proposed as a marker of biological age. Analyses were conducted in 405,981 UK Biobank participants. We show that steady/average and brisk walkers had significantly longer LTL compared with slow walkers, with accelerometer-assessed measures of physical activity further supporting this through an association between LTL and habitual activity intensity, but not with total amount of activity. Bi-directional mendelian randomisation analyses suggest a causal link between walking pace and LTL, but not the other way around. A faster walking pace may be causally associated with longer LTL, which could help explain some of the beneficial effects of brisk walking on health status. Given its simple measurement and low heritability, self-reported walking pace may be a pragmatic target for interventions. Mendelian randomisation analysis of the UK Biobank cohort, supported by analyses of accelerometer-measured activity intensity, reveals that genetically-determined walking pace is associated with longer leucocyte telomere length (LTL), hinting at how brisk walking could offer health benefits.
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